164635633 has 16 divisors (see below), whose sum is σ = 182704896. Its totient is φ = 147558400.

The previous prime is 164635619. The next prime is 164635651. The reversal of 164635633 is 336536461.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-164635633 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 164635592 and 164635601.

It is not an unprimeable number, because it can be changed into a prime (164635033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102033 + ... + 103633.

It is an arithmetic number, because the mean of its divisors is an integer number (11419056).

Almost surely, 2^164635633 is an apocalyptic number.

It is an amenable number.

164635633 is a deficient number, since it is larger than the sum of its proper divisors (18069263).

164635633 is a wasteful number, since it uses less digits than its factorization.

164635633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1904.

The product of its digits is 116640, while the sum is 37.

The square root of 164635633 is about 12831.0417737610. The cubic root of 164635633 is about 548.0766238515.

The spelling of 164635633 in words is "one hundred sixty-four million, six hundred thirty-five thousand, six hundred thirty-three".